Project Information (optional)

Project Name

Owner / Client

Project Address

Core Inputs (required)

Usage required

Floors

Total Area (m²)

Ceiling Height (m)

Ambient Noise (dBA)

Target Over Ambient (dB)

Speakers & Coverage

Speaker Type

Coverage Radius (m)

Power Tap per Speaker (W)

Sensitivity (dB @1W/1m)

Typical Listening Distance (m)

Overlap Factor (%)

Cabling & Zones

Avg. Horizontal Run per Speaker (m)

Vertical Riser per Floor (m)

Cable Buffer (%)

Zones (paging areas)

Amplifier Headroom (%)

Emergency Integration

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Results

Quantities & Power

Item	Quantity / Value	Notes
Speakers (qty)	—	Based on coverage & overlap
Total Load (W)	—	Σ (qty × tap)
Recommended Amplifier (W)	—	Load × headroom
Zones	—	For paging/EVAC priorities
Estimated SPL @ listener (dBA)	—	vs target: —

Cabling Estimate

Cable Group	Base Length (m)	Buffer (%)	Total with Buffer (m)	Notes
Speaker Line (100V)	—	—	—	Routing per BS EN 50174 / IEC 60364
Vertical Riser	—	—	—	Per floor allowance
Grand Total	—	—	—	Includes buffer

System Complements

Mixer‑Amplifier (100V) with inputs for paging microphone & BGM
Zone Selector / Paging Controller
Priority relays for emergency override
Ceiling / Projector / Horn speakers (as selected)
Line supervision (for VA systems)
UPS/Battery backup (if required by VA / local code)
Racks, cable trays, conduits & accessories
Commissioning & intelligibility checks (STI where applicable)

Preliminary Estimate Only: Planning aid; not for construction or life safety. Final design must be verified with manufacturer datasheets and local codes.

Feedback Integrated Solutions

Public Address (PA) — Preliminary Summary Report

Project: —

Owner: —

Address: —

BoQ (Preliminary)

Item	Quantity / Value	Notes
Speakers	—	Coverage + overlap
Total Load (W)	—	Σ taps
Amplifier (W)	—	Headroom applied
Zones	—	Paging areas
Est. SPL @ listener	—	Target: —

Cabling Summary

Group	Base (m)	Buffer (%)	Total (m)	Notes
Speaker Line	—	—	—	BS EN 50174 / IEC 60364
Vertical Riser	—	—	—	Per floor
Grand Total	—	—	—	Includes buffer

Preliminary Estimate Only: Final design must be verified by manufacturer data & local codes (voice alarm standards where applicable).